MPLS-Related Configuration Templates

This document describes how to create configuration templates for the mpls configuration module to implement LDP, MPLS/VPN, 6PE, or BGP-LU.

Enabling MPLS Support on a Device

To enable MPLS features on a device, add the mpls dictionary to the device YAML file (netsim/devices/<device>.yml). Enable individual features within that file, for example:

mpls:
  vpn: true

Template Architecture

The MPLS configuration uses a two-tier template structure. The templates should be stored in the netsim/ansible/templates/mpls/ directory. Feature-specific templates can also be stored within the netsim/ansible/templates/mpls/<platform> directory (example: IOS XR).

Main MPLS Template

The <platform>.j2 template (e.g., eos.j2) includes templates for MPLS sub-features based on ldp or mpls node variables:

{% if ldp is defined %}
{%   include '<platform>.ldp.j2' +%}
{% endif %}
{% if mpls.bgp is defined %}
{%   include '<platform>.bgp-lu.j2' +%}
{% endif %}
{% if mpls.vpn is defined %}
{%   include '<platform>.mplsvpn.j2' +%}
{% endif %}
{% if mpls['6pe'] is defined %}
{%   include '<platform>.6pe.j2' +%}
{% endif %}

Tip

The <platform> is the value of the netlab_device_type or ansible_network_os variable.

Configuring MPLS Features

• MPLS LDP Configuration Templates
• MPLS/VPN Configuration Templates
• MPLS 6PE Configuration Templates